1. Institute of Medical Statistics, Informatics and Epidemiology (IMSIE) Faculty of Medicine University of Cologne Cologne Germany
2. CRI—Clinical Research International Limited Hamburg Germany
3. Department of Oto‐Rhino‐Laryngology University Clinic Carl Gustav Carus Technical University Dresden Dresden Germany
4. Laboratory of Brussels University Hospitals Laboratory of Translational Research Brugmann University Hospital, ULB Brussels Belgium
5. ASIT biotech s.a. Brussels Belgium
6. Immunomodulation and Tolerance Group Allergy and Clinical Immunology, Respiratory Science Division National Heart and Lung Institute Imperial College London UK